modernize introduction somewhat
At least it no longer recommends deprecated types.
This commit is contained in:
parent
2f2e5fedd3
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GPG key ID:
4C88A185FB89301E
2 changed files with 172 additions and 188 deletions
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@ -32,7 +32,7 @@ const remarkParseAtTypes: RemarkPlugin<[]> = () => {
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const node = rawNode as Md.Literal;
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node.value = node.value.replace(
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/@@((?<module>([A-Z]\w*\.)*)(?<type>([A-Z]\w*))\.?)?((?<member>[a-z]\w*)((?<function>\(\))|(?<signal>\(s\)))?)?(?=[$.,;:)\s]|$)/g,
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/@@((?<module>([A-Z]\w*\.)*)(?<type>([A-Z]\w*))(\.(?!\s|$))?)?((?<member>[a-z]\w*)((?<function>\(\))|(?<signal>\(s\)))?)?(?=[$.,;:)\s]|$)/g,
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(_full, ...args) => {
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type Capture = {
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module: string | undefined;
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@ -3,41 +3,27 @@ title: "Introduction"
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index: 2
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---
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import Collapsible from "@components/Collapsible.astro";
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# {frontmatter.title}
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> [!NOTE]
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> This guide was created a long time ago, and is somewhat outdated.
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> Take a look at @@Quickshell.SystemClock after going through.
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This page will walk you through the process of creating a simple bar/panel, and
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introduce you to all the basic concepts involved.
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introduce you to all the basic concepts involved. You can use the
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[QML Language Reference](/docs/guide/qml-language) to learn about the syntax
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of the QML language.
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There are many links to the [QML Overview](/docs/guide/qml-language)
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and [Type Reference](/docs/types) which you should follow if you don't
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fully understand the concepts involved.
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Note that all the <a>Green Links</a> in code blocks will take you to the documentation
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for their respective types.
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## Shell Files
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## Config Files
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Quickshell searches the `quickshell` subfolder of every XDG standard config path
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for configs. Usually this is `~/.config/quickshell`.
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Every quickshell instance starts from a shell root file, conventionally named `shell.qml`.
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The default path is `~/.config/quickshell/shell.qml`.
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(where `~/.config` can be substituted with `$XDG_CONFIG_HOME` if present.)
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Each named subfolder containing a `shell.qml` file is considered to be a config.
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If the base `quickshell` folder contains a shell.qml file, subfolders will not be
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considered.
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Each shell file starts with the shell root object. Only one may exist per configuration.
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A specific config can be picked using the `--config` or `-c` argument to Quickshell.
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```qml
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// ~/.config/quickshell/shell.qml
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import Quickshell
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@@Quickshell.ShellRoot {
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// ...
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}
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```
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The shell root is not a visual element but instead contains all of the visual
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and non visual objects in your shell. You can have multiple different shells
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with shared components and different shell roots.
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Configs at other paths, including raw qml files can be run with `--path` or `-p`.
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## Creating Windows
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@ -48,10 +34,9 @@ Quickshell has two main window types available,
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We'll start with an example:
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```qml
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import Quickshell // for ShellRoot and PanelWindow
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import Quickshell // for PanelWindow
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import QtQuick // for Text
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@@Quickshell.ShellRoot {
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@@Quickshell.PanelWindow {
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anchors {
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top: true
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@ -68,19 +53,21 @@ import QtQuick // for Text
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text: "hello world"
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}
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}
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}
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```
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The above example creates a bar/panel on your currently focused monitor with
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a centered piece of [text](https://doc.qt.io/qt-6/qml-qtquick-text.html). It will also reserve space for itself on your monitor.
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More information about available properties is available in the [type reference](/docs/types/quickshell/panelwindow).
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More information about available properties is available in the [type reference](/docs/types/Quickshell/PanelWindow).
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## Running a process
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Now that we have a piece of text, what if it did something useful?
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To start with lets make a clock. To get the time we'll use the `date` command.
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> [!note/Note]
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> Quickshell can do more than just run processes. Read until the end for more information.
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We can use a [Process](/docs/types/quickshell.io/process) object to run commands
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and return their results.
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@ -98,7 +85,6 @@ import Quickshell
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import Quickshell.Io // for Process
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import QtQuick
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@@Quickshell.ShellRoot {
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@@Quickshell.PanelWindow {
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anchors {
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top: true
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@ -132,7 +118,6 @@ import QtQuick
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}
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}
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}
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}
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```
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## Running code at an interval
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@ -145,7 +130,6 @@ import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.ShellRoot {
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@@Quickshell.PanelWindow {
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anchors {
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top: true
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@ -189,7 +173,6 @@ import QtQuick
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}
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}
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}
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}
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```
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## Reusable components
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@ -217,7 +200,6 @@ import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.ShellRoot {
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@@Quickshell.Variants {
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model: Quickshell.screens;
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@ -262,7 +244,6 @@ import QtQuick
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}
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}
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}
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}
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```
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<span class="small">
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@ -276,8 +257,9 @@ due to the reactive nature of the
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(See: [Reactive Bindings](/docs/configuration/qml-overview/#reactive-bindings).)
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Now there's an important problem you might have noticed: when the window
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is created multiple times we also make a new Process and Timer. We can fix
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this by moving the Process and Timer outside of the window.
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is created multiple times we also make a new Process and Timer, which makes the
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bar less efficient than it could be. We can fix this by moving the
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Process and Timer outside of the window using @@Quickshell.Scope.
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> [!caution/Error]
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> This code will not work correctly.
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@ -287,7 +269,7 @@ import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.ShellRoot {
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@@Quickshell.Scope {
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@@Quickshell.Variants {
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model: Quickshell.screens
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@ -338,11 +320,11 @@ _What about the `clock` that the process references?_
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If you run the above example you'll see something like this in the console every second:
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```
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file:///home/name/.config/quickshell/shell.qml:33: ReferenceError: clock is not defined
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file:///home/name/.config/quickshell/shell.qml:33: ReferenceError: clock is not defined
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file:///home/name/.config/quickshell/shell.qml:33: ReferenceError: clock is not defined
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file:///home/name/.config/quickshell/shell.qml:33: ReferenceError: clock is not defined
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file:///home/name/.config/quickshell/shell.qml:33: ReferenceError: clock is not defined
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WARN scene: **/shell.qml[36:-1]: ReferenceError: clock is not defined
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WARN scene: **/shell.qml[36:-1]: ReferenceError: clock is not defined
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WARN scene: **/shell.qml[36:-1]: ReferenceError: clock is not defined
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WARN scene: **/shell.qml[36:-1]: ReferenceError: clock is not defined
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WARN scene: **/shell.qml[36:-1]: ReferenceError: clock is not defined
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```
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This is because the `clock` object, even though it has an ID, cannot be referenced
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@ -362,11 +344,11 @@ import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.ShellRoot {
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@@Quickshell.Scope {
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id: root
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// add a property in the root
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property string time;
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property string time
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@@Quickshell.Variants {
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model: Quickshell.screens
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@ -389,7 +371,7 @@ import QtQuick
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anchors.centerIn: parent
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// bind the text to the root's time property
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// bind the text to the root object's time property
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text: root.time
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}
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}
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@ -427,9 +409,6 @@ above code, but we can make it more concise:
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which means we can skip the `delegate:` part of the assignment.
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We're already using the default property of @@Quickshell.ShellRoot to store our
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Variants, Process, and Timer components among other things.
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3. The ShellRoot doesn't actually need an `id` property to talk about
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the time property, as it is the outermost object in the file which
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has [special scoping rules](/docs/configuration/qml-overview/#property-access-scopes).
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This is what our shell looks like with the above (optional) cleanup:
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@ -438,8 +417,9 @@ import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.ShellRoot {
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property string time;
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@@Quickshell.Scope {
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id: root
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property string time
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@@Quickshell.Variants {
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model: Quickshell.screens
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@ -458,9 +438,7 @@ import QtQuick
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@@QtQuick.Text {
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anchors.centerIn: parent
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// now just time instead of root.time
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text: time
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text: root.time
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}
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}
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}
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@ -471,8 +449,7 @@ import QtQuick
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running: true
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stdout: @@Quickshell.Io.SplitParser {
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// now just time instead of root.time
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onRead: data => time = data
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onRead: data => root.time = data
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}
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}
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@ -496,7 +473,7 @@ To start with, let's move the entire bar into a new file.
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// shell.qml
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import Quickshell
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@@Quickshell.ShellRoot {
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@@Quickshell.Scope {
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Bar {}
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}
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```
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import QtQuick
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@@Quickshell.Scope {
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property string time;
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id: root
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property string time
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@@Quickshell.Variants {
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model: Quickshell.screens
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@ -527,9 +505,7 @@ import QtQuick
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@@QtQuick.Text {
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anchors.centerIn: parent
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// now just time instead of root.time
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text: time
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text: root.time
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}
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}
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}
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@ -540,8 +516,7 @@ import QtQuick
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running: true
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stdout: @@Quickshell.Io.SplitParser {
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// now just time instead of root.time
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onRead: data => time = data
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onRead: data => root.time = data
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}
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}
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@ -589,7 +564,7 @@ import QtQuick
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@@Quickshell.Scope {
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id: root
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property string time;
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property string time
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@@Quickshell.Variants {
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model: Quickshell.screens
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@ -609,7 +584,6 @@ import QtQuick
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// the ClockWidget type we just created
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ClockWidget {
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anchors.centerIn: parent
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// Warning: setting `time: time` will bind time to itself which is not what we want
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time: root.time
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}
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}
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@ -621,7 +595,7 @@ import QtQuick
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running: true
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stdout: @@Quickshell.Io.SplitParser {
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onRead: data => time = data
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onRead: data => root.time = data
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}
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}
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@ -646,7 +620,8 @@ import Quickshell.Io
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import QtQuick
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@@Quickshell.Scope {
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property string time;
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id: root
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property string time
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@@Quickshell.Io.Process {
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id: dateProc
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@ -654,7 +629,7 @@ import QtQuick
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running: true
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stdout: @@Quickshell.Io.SplitParser {
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onRead: data => time = data
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onRead: data => root.time = data
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}
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}
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@ -721,6 +696,7 @@ import QtQuick
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// your singletons should always have Singleton as the type
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@@Quickshell.Singleton {
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id: root
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property string time
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@@Quickshell.Io.Process {
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@ -729,7 +705,7 @@ import QtQuick
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running: true
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stdout: @@Quickshell.Io.SplitParser {
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onRead: data => time = data
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onRead: data => root.time = data
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}
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}
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@ -786,31 +762,39 @@ import Quickshell
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}
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```
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## JavaScript APIs
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## Quickshell Support Libraries
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In addition to calling external processes, Quickshell comes with a large set of support libraries
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for common OS integrations and tasks. These libraries are indexed on the left sidebar.
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In addition to calling external processes, a [limited set of javascript interfaces] is available.
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We can use this to improve our clock by using the [Date API] instead of calling `date`.
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One of these integrations is @@Quickshell.SystemClock, which exposes the system time in an easy to
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use way.
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[limited set of javascript interfaces]: https://doc.qt.io/qt-6/qtqml-javascript-functionlist.html
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[Date API]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date
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We can use @@Quickshell.SystemClock.date to get a Date object to display. The
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@@QtQml.Qt.formatDateTime() function can be used to easily format the date
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as shown below.
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@@Quickshell.SystemClock.precision can be set to `Minutes` to improve battery life if you don't
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show seconds on your clock, as Quickshell will have less work to do.
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```qml
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// Time.qml
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pragma Singleton
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import Quickshell
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import Quickshell.Io
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import QtQuick
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@@Quickshell.Singleton {
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property var date: new Date()
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property string time: date.toLocaleString(Qt.locale())
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id: root
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// an expression can be broken across multiple lines using {}
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readonly property string time: {
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// The passed format string matches the default output of
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// the `date` command.
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Qt.formatDateTime(clock.date, "ddd MMM d hh:mm:ss AP t yyyy")
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}
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@@QtQml.Timer {
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interval: 1000
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running: true
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repeat: true
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onTriggered: date = new Date()
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@@Quickshell.SystemClock {
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id: clock
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precision: SystemClock.Seconds
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}
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}
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```
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Loading…
Add table
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Reference in a new issue